Exercise apparatus



FIG. 1 is a perspective view of an exercise apparatus;

FIG. 2 is a right perspective view thereof;

FIG. 3 is a left perspective view thereof;

FIG. 4 is a rear perspective view thereof; and,

FIG. 5 is a top perspective view thereof.

The broken lines shown in the figures are for the purpose of illustrating environmental structure which form no part of the claimed design. 

CLAIM The ornamental design for an exercise apparatus, as shown and described. 